196742831 has 8 divisors (see below), whose sum is σ = 199376880. Its totient is φ = 194124672.

The previous prime is 196742803. The next prime is 196742881. The reversal of 196742831 is 138247691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196742831 is a prime.

It is a super-2 number, since 2×196742831² = 77415483099789122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196742881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22076 + ... + 29678.

It is an arithmetic number, because the mean of its divisors is an integer number (24922110).

Almost surely, 2^196742831 is an apocalyptic number.

196742831 is a deficient number, since it is larger than the sum of its proper divisors (2634049).

196742831 is a wasteful number, since it uses less digits than its factorization.

196742831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945.

The product of its digits is 72576, while the sum is 41.

The square root of 196742831 is about 14026.5045895262. The cubic root of 196742831 is about 581.6114826106.

The spelling of 196742831 in words is "one hundred ninety-six million, seven hundred forty-two thousand, eight hundred thirty-one".